Watch-case



(No Model.)

' G. W. HARMAN-& H. G. SKID'MORE.

WATCH CASE.

"as 1 mn mm) a gk-wfm Jazz/5,

Unirnn STATES C. FVESLEY HARMAN AND HORACE G. SKIDMORE,

OF (IXUIXXATL )1 HO.

WATCH-CASE.

To all whmn it may concern:

Be it known that we, 0. WnsLEY Hannxx and Honacn G. Snrnnonn, both of Cincinnati, Hamilton county, Ohio, have invented a new and useful Improvement in XVatch- Movement Boxes, of which the following is a specification.

Our invention relates to an inclosing box or shell for a watch-movement so constructed as to be completely and permanently dust and moisture proof, and toeonstitute, from and after completion ofthe movement, a protectingenvelope thereto for storage or shipment, and finally as a constituent part of the completed watch, whose mechanism thus becomes hermetically sealed, irrespective ofany dust-proof qualities of the external case, and whether such case be, in fact, dust-proof or not.

In the accompanying drawings, Figure l is a perspective view of our movement- -box viewed on its front side. Fig. 2 is a perspective view of the same without the front cover. Fig. 3 is a profile of the ring or body,taken on its rear side. Fig. 4 is a rear view of the box in place within a watch-case, portions of the rear cover being broken away to expose a pair of fastening-screws, of which one is shown in the effective or looking position. Fig. 5 is a section on the line x y z of Fig. 4. Fig. 6 is an enlarged representation of the cover fastenings. Fig. '7 is an enlarged representation of one of the locking-screws.

A may represent the central rim center of the external watch-case, of any customary or suitable style or pattern.

B is an annular piece of metal that constitute the body of Thai margin of said bod r which in use corresponds to the dial or front face of the movement has a step or rabbet, b, spiral grooves b in which receive studs 0 that project from the metallic portion (bezel) O of the front cover, 0 D, of the said box, in which I) represents the glass or crystal. The action of said studs in said grooves is such that a short turn to the right of said cover closes it down hermetically upon said body. The rear edge of said body has a rabbet, I), which, fitting against lip a of the watch-case proper, serves to support the movement-box in the said case, and has concentrically within said rabbet anour movement box or shell. l

No. 298,869, dated February 19, 1884.

(X0 model.)

other rabbet, b, spiral grooves I) in which receive studs 0, that, projecting inwardly from the rear cover, 0, enable its attachment to the body in the same manner as that described for the front cover. A small hole, Z), in the inner wall of the body, near its front edge, receives the customary projection from the move ment-frame to prevent any circumferential shift thereof. For a like purpose the movement-box has an external projection or stud, Z)", to occupy the notch a (see Fig. 5) in the external case, which, in the customary form of watches, receives the aforesaid projection from the movement. To prevent the thus-inserted movement-box dropping out through the front of the watch-case, we tap into the body B two half-head screws, 6 c, which, when placed in I the position that cis shown in, permit the insertion into the watch-case of the movementbox, and which, when placed in the position that c is shown in, serve to lock said box securely to thecase.

Such of our boxes as are intended for stemwinders mayhave a circular orifice, F, closed temporarily by a plug, G. Through this ori fice (after removal of the plug) the winderl stem is inserted. A similar orifice may be provided in the rearicover, C, for the key-pipe l in key-winding movements; but we prefer to leave this perforation for the jeweler to make when applying the movement-box to its peri manent case. The construction will be seen to be such as to permit removal. of either cover 0 D or C and of the movement itself without removing the body B from its place in the i watch-case.

The above-described preferred form of our invention may be varied in some of its details. I For example, either or both'covers may be attached to the body by screw-threads. A glazed bezel, like 0 D, may be substituted for the allmetal cover C. The shoulder which supports the movementbox within the case proper may I be located near the front instead of at the rear of said case.

lVe claim as new and of our inventionl. A movement-holding ring for watches, adapted to be held from movement in the case center, and having the bezel and back secured to it by being turned on, as by a screw or bayl onet-joint connection, so that access can be had to the movement without removing it from the case-center, said ring being adapted for use as a movement-holding box, as set forth.

2. The watch-movement box or receptacle in three parts consisting of annular body B, having rabbets b b b, the spiral grooves 22, the hole b, and the stud I)", in combination with the separatelyattached covers 0 D and 0, having inwardly-extending studs 0, for the purpose set forth.

' 3. The combination of a watch-case center, A, having recess a and lip a, a movement box or receptacle in three pieces, consisting of anas and 0. \VESLEY HARMAN. HORACE G. SKIDMORE.

Attest:

Gno. H. KNIGHT, SAML. S. CARPENTER. 

